Computer processing devices are used to process data using program instructions, manipulate functions, perform calculations and control other hardware devices. They play an important part in the processing operations of a computer. Examples of processing devices include the CPU, motherboard, chip set, clock, battery, expansion slots, data bus, address bus and random access memory.

The central processing unit is the most important processing device of a computer. It is the intelligent part of a computer system that carries out the instructions of a computer program, as well as all the functions of a computer. Without a CPU, a computer cannot perform any of the operations for which it is intended.

The motherboard is a circuit board found inside a computer that houses the CPU, memory, buses and other components. It provides a way for all the components in a computer to communicate with each other.

The chip set is a group of integrated circuits that work together to manage and control the computer system. They collectively handle the flow of data throughout the system.

A data bus is found on a motherboard, and it is a collection of wires used by the CPU to transfer data between the components in a computer.

The RAM found in a computer is a temporary storage for data. It holds data, application software command and instructions as the processing is taking place.